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2 years ago

What property do all of the group 18 elements have that make them stand out from other elements?

1 answer:

5 0

They are very stable (not reactive).

This is because their outer shell has a total of 8 valence electrons. All elements strive to get towards a full outer shell, but since these elements already have a full outer shell, they are fairly unreactive.

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Recording station x has determined that the epicenter of a recent earthquake was 250 km away. no information is available yet fr

KatRina [158]

The epicenter was located somewhere on a circle centered at Recording station X, with a radius of 250 km.<span>
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2 years ago

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The main reason that cs2 has a higher boiling point than co2 is that cs2

OlgaM077 [116]

Explanation:

Inspite of having similar intermolecular forces, CS2 has a higher boiling point than CO2, since it has a greater molar mass. The potential energy of molecules reduces until a certain level as they get closer to each other. Although the polarity of both CO2 and CS2 are cancelled because of their linear structure.

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2 years ago

What is 93,000,000 in scientific notation?

DanielleElmas [232]

I believe it is 9.3x10^7

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2 years ago

You want to know how many moles of gas your lungs can hold. You start off with a balloon that has 1.4 moles of gas and occupies

Mrrafil [7]

Number of moles : n₂ = 1.775 moles

<h3>Further explanation</h3>

Given

Moles = n₁ = 1.4

Volume = V₁=22.4 L

V₂=28.4 L

Required

Moles-n₂

Solution

Avogadro's hypothesis, at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles

The ratio of gas volume will be equal to the ratio of gas moles

$\tt \dfrac{V_1}{V_2}=\dfrac{n_1}{n_2}$

Input the values :

n₂ = (V₂ x n₁)/V₁

n₂ = (28.4 x 1.4)/22.4

n₂ = 1.775 moles

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2 years ago

Select the correct answer.

Illusion [34]

Answer: the new force will be 1/9 of the original force

Explanation: Please see attachment for explanation

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2 years ago